Fluid handling – Self-proportioning or correlating systems – Self-proportioning flow systems
Patent
1994-06-23
1996-04-09
Gluck, Richard E.
Fluid handling
Self-proportioning or correlating systems
Self-proportioning flow systems
417403, 91229, F04B 1302, G05D 1103
Patent
active
055052240
ABSTRACT:
The device (D) for controlling the reciprocating displacements of a differential piston (1) includes at least one valve associated with each of the parts of different cross-sections of the piston (1), and a rocker mechanism (B) urged by a spring in a direction transverse to the direction of displacement of the piston (1). The rocker mechanism (B) is designed to control the valves in closure and/or opening at each end of stroke in order to reverse the movement of the piston (1); a push rod (55) is mounted so that it slides relative to the piston (1), whilst being able to be driven by this piston, the push rod being capable of coming to bear, at each end of stroke, against a limit stop (s, 14a) connected to the enclosure, in order to give rise to the rocking of the mechanism (B). The rocker mechanism (B) is arranged in order to provide internal takeup of the transverse forces of the elastic means (44) and in order to transmit to the push rod (55) solely forces which are substantially parallel to the direction of displacement of this push rod (55).
REFERENCES:
patent: 4621747 (1986-11-01), van der Velde et al.
patent: 4756329 (1988-07-01), Cloup
patent: 4809731 (1989-03-01), Walton et al.
patent: 4832071 (1989-05-01), Rehfeld
patent: 5137435 (1992-08-01), Walton
patent: 5234322 (1993-08-01), Daniels et al.
patent: 5244361 (1993-09-01), Solomon
Saubade Michel
Urrutia Stephane
Gluck Richard E.
Societe Civile de Recherche ODY
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